/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendRegistries.h
typedef [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(const [FMetasoundFrontendClass](API\Plugins\MetasoundFrontend\FMetasoundFrontendClass) &)> FIterateMetasoundFrontendClassFunction